公开(公告)号：US20110064156A1

公开(公告)日：2011-03-17

申请号：US12439955

申请日：2007-09-05

申请人： Jae Wan Kim ,  Bin Chul Ihm ,  Jin Young Chun ,  Wook Bong Lee ,  Hyun Soo Ko ,  Jin Hyuk Jung ,  Moon Il Lee

发明人： Jae Wan Kim ,  Bin Chul Ihm ,  Jin Young Chun ,  Wook Bong Lee ,  Hyun Soo Ko ,  Jin Hyuk Jung ,  Moon Il Lee

IPC分类号： H04B7/02 ,  H04L27/20

CPC分类号： H04B7/10 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0691

摘要： Precoding methods and method for performing precoding and methods of transmitting feedback information for precoding or transmitting a signal using a multi-codebook and method of transceiving precoding information in a multi-antenna system, where a signal transmitting method in a multi-antenna system, and more particularly, a method of transceiving precoding matrix information for a multi-input multi-output (MIMO) system is disclosed. The present invention proposes a method of performing communications using an expanded unitary matrix generated from shifting a phase of a base unitary matrix. The present invention is applicable to single user MIMO, multi-user MIMO, beam forming, etc.

摘要翻译： 用于执行预编码的预编码方法和方法以及使用多码本中的预编码或发送信号的反馈信息的发送方法和在多天线系统中收发预编码信息的方法，其中多天线系统中的信号发送方法和 更具体地，公开了一种用于多输入多输出（MIMO）系统的收发预编码矩阵信息的方法。 本发明提出了一种使用从移动基本酉矩阵的相位产生的扩展酉矩阵来执行通信的方法。 本发明适用于单用户MIMO，多用户MIMO，波束形成等。

公开(公告)号：US20110038436A1

公开(公告)日：2011-02-17

申请号：US12922819

申请日：2009-05-07

申请人： Jae Wan Kim ,  Su Nam Kim ,  Dong Guk Lim ,  Bin Chul Ihm ,  Ja Ho Koo

发明人： Jae Wan Kim ,  Su Nam Kim ,  Dong Guk Lim ,  Bin Chul Ihm ,  Ja Ho Koo

IPC分类号： H04K1/10

CPC分类号： H04B7/024 ,  H04B7/0621 ,  H04B7/0639

摘要： A method for transmitting and receiving data in a cooperative Multiple-Input Multiple-Output (MIMO) mobile communication system is disclosed. The method includes selecting a transmission path for transmitting precoding-related feedback control information to one or more cooperative base stations operating in the cooperative MIMO mode, and transmitting the precoding-related feedback control information to the one or more cooperative base stations through the selected transmission path.

摘要翻译： 公开了一种在协作多输入多输出（MIMO）移动通信系统中发送和接收数据的方法。 该方法包括：选择用于向与协作MIMO模式中工作的一个或多个协作基站发送预编码相关反馈控制信息的传输路径，以及通过所选择的传输将预编码相关反馈控制信息发送给一个或多个协作基站 路径。

公开(公告)号：US20100309998A1

公开(公告)日：2010-12-09

申请号：US12811175

申请日：2008-12-30

申请人： Jin Hyuk Jung ,  Su Nam Kim ,  Bin Chul Ihm ,  Jae Wan Kim

发明人： Jin Hyuk Jung ,  Su Nam Kim ,  Bin Chul Ihm ,  Jae Wan Kim

IPC分类号： H04L27/28

CPC分类号： H04B7/0617 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0621 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639

摘要： A method for transmitting a precoded signal in a collaborative multiple-input multiple-output (MIMO) communication system is described. A method for receiving a precoded signal in a MIMO communication system includes estimating, by a mobile station, channels for one or more base stations through signals received from the one or more base stations including a serving base station, transmitting precoding matrix indexes of the one or more base stations determined based on the estimated channels to the serving base station, and receiving signals precoded by the one or more base stations based on the precoding matrix index.

摘要翻译： 描述了在协作多输入多输出（MIMO）通信系统中发送预编码信号的方法。 一种用于在MIMO通信系统中接收预编码信号的方法包括：通过移动台通过从包括服务基站的一个或多个基站接收的信号估计一个或多个基站的信道，发送一个或多个基站的预编码矩阵索引 或更多的基站，基于所估计的信道确定到服务基站，以及接收基于预编码矩阵索引由一个或多个基站预编码的信号。

公开(公告)号：US20090181708A1

公开(公告)日：2009-07-16

申请号：US12318439

申请日：2008-12-29

申请人： Jae Wan Kim ,  Wook Bong Lee ,  Su Nam Kim ,  Dong Guk Lim ,  Bin Chul Ihm

发明人： Jae Wan Kim ,  Wook Bong Lee ,  Su Nam Kim ,  Dong Guk Lim ,  Bin Chul Ihm

IPC分类号： H04B15/00

CPC分类号： H04W72/02 ,  H04B7/024 ,  H04B7/026 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0495 ,  H04B7/0626 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B17/345 ,  H04L1/0026 ,  H04L25/03904 ,  H04W24/02

摘要： A method for reducing inter-cell interference and a method for transmitting a signal by a collaborative MIMO scheme, in a communication system having a multi-cell environment are disclosed. An example of a method for transmitting, by a mobile station, precoding information in a collaborative MIMO communication system includes determining a precoding matrix set including precoding matrices of one more base stations including a serving base station, based on signal strength of the serving base station, and transmitting information about the precoding matrix set to the serving base station. A mobile station in an edge of a cell performs a collaborative MIMO mode or inter-cell interference mitigation mode using the information about the precoding matrix set collaboratively with neighboring base stations.

摘要翻译： 公开了一种在具有多小区环境的通信系统中减少小区间干扰的方法和通过协作MIMO方案发送信号的方法。 用于由移动站发送协作MIMO通信系统中的预编码信息的方法的示例包括基于服务基站的信号强度来确定包括包括服务基站的多个基站的预编码矩阵的预编码矩阵集合 并且将关于预编码矩阵集的信息发送到服务基站。 小区边缘的移动台使用与相邻基站协作的关于预编码矩阵集的信息执行协同MIMO模式或小区间干扰减轻模式。

公开(公告)号：US07224750B2

公开(公告)日：2007-05-29

申请号：US10461264

申请日：2003-06-13

申请人： Jae-wan Kim ,  In-chul Hwang ,  Hae-moon Seo ,  Young-jin Kim

发明人： Jae-wan Kim ,  In-chul Hwang ,  Hae-moon Seo ,  Young-jin Kim

IPC分类号： H03K9/00

CPC分类号： H03D7/163

摘要： An apparatus and method for receiving RF signals in a RF communication system are provided. The apparatus for receiving RF signals comprises a pre-processing unit for bandpass-filtering a signal received through an external antenna with a predetermined bandwidth and extracting a RF input signal having a desired frequency; a mixing unit for mixing the RF input signal provided from the pre-processing unit with a local oscillation signal having the same frequency as the RF input signal and generating a desired baseband signal; a noise-free-signal amplifying unit for shifting the desired baseband signal to a band that is free of effects due to 1/f noise, amplifying the shifted baseband signal, and re-shifting the amplified signal to the baseband; and a baseband processing unit for selecting a desired channel signal from the amplified baseband signal to be provided from the noise-free-signal amplifying unit and amplifying the selected signal.

摘要翻译： 提供了一种用于在RF通信系统中接收RF信号的装置和方法。 用于接收RF信号的装置包括预处理单元，用于对具有预定带宽的外部天线接收的信号进行带通滤波，并提取具有期望频率的RF输入信号; 混合单元，用于将从预处理单元提供的RF输入信号与具有与RF输入信号相同频率的本地振荡信号混合并产生期望的基带信号; 无噪声信号放大单元，用于将期望的基带信号移位到由于1 / f噪声而无效的频带，放大经移位的基带信号，并将放大的信号重新移位到基带; 以及基带处理单元，用于从要由无噪声信号放大单元提供的放大基带信号中选择期望的信道信号，并放大所选择的信号。

公开(公告)号：US20070075777A1

公开(公告)日：2007-04-05

申请号：US11528880

申请日：2006-09-28

申请人： Jae-Wan Kim

发明人： Jae-Wan Kim

IPC分类号： H03F3/45

CPC分类号： H03F3/45197 ,  H03F3/4565

摘要： A DC offset elimination device includes a first signal path that delivers a differential input signal pair from an input node to an output node and a second signal path that delivers a differential output signal pair from the output node to the input node. The second signal path includes a first transconductor having an input terminal coupled to the output node, an amplifier having an input terminal coupled to an output terminal of the first transconductor, a capacitor coupled in parallel to the amplifier, and a second transconductor coupled to the output terminal of the amplifier and to the input node.

摘要翻译： DC偏移消除装置包括将差分输入信号对从输入节点传递到输出节点的第一信号路径以及将差分输出信号对从输出节点传送到输入节点的第二信号路径。 第二信号路径包括具有耦合到输出节点的输入端的第一跨导体，具有耦合到第一跨导体的输出端的输入端的放大器，与放大器并联耦合的电容器和耦合到放大器的第二跨导器 输出端子和输入节点。

公开(公告)号：US20050275438A1

公开(公告)日：2005-12-15

申请号：US11145254

申请日：2005-06-03

申请人： Jae-Wan Kim

发明人： Jae-Wan Kim

IPC分类号： H03L7/08 ,  H03H11/48 ,  H03L7/06 ,  H03L7/089 ,  H03L7/093

CPC分类号： H03L7/093 ,  H03H11/483 ,  H03L7/0891

摘要： A capacitance multiplier includes a cascade of a plurality of current amplifiers with each current amplifier having a respective current gain Ki. In addition, the capacitance multiplier includes a capacitor coupled in parallel across the cascade of current amplifiers. Such a capacitance multiplier occupies a smaller area with higher capacitance gain but with low power consumption.

摘要翻译： 电容倍增器包括多个电流放大器的级联，每个电流放大器具有相应的电流增益Ki。 此外，电容倍增器包括并联耦合在级联的电流放大器上的电容器。 这种电容倍增器占用较小的区域，具有较高的电容增益但功耗较低。

公开(公告)号：US06850676B2

公开(公告)日：2005-02-01

申请号：US10193433

申请日：2002-07-11

申请人： Jong-Youl Kim ,  Seung-Jin Baek ,  Jae-Wan Kim

发明人： Jong-Youl Kim ,  Seung-Jin Baek ,  Jae-Wan Kim

IPC分类号： G02B6/24 ,  G02B6/12 ,  G02B6/30 ,  G02B6/36 ,  G03F1/00 ,  G03F1/70 ,  G02B6/00 ,  G03F9/00

CPC分类号： G02B6/3636 ,  G02B6/3652 ,  G02B6/3692 ,  G03F1/38 ,  G03F1/80

摘要： A photomask is disclosed for the fabrication of an optical fiber block including a first section provided with slit arrays adapted to form an optical fiber alignment region of the optical fiber block while having a uniform slit pitch, partition portions arranged between adjacent ones of the slit arrays while having a pitch larger than the slit pitch, and end portions arranged outside the slit arrays while having a pitch larger than the slit pitch. The photomask also includes a second section adapted to form a stress-reducing recessed region of the optical fiber block etched to a desired depth from the level of the optical fiber alignment region. The photomask also includes auxiliary slit arrays arranged at an interface between the first and second sections. The auxiliary slit array includes at least one slit.

摘要翻译： 公开了一种用于制造光纤块的光掩模，该光纤块包括：第一部分，其设置有狭缝阵列，该狭缝阵列适于形成光纤块的光纤对准区域，同时具有均匀的狭缝间距;分隔部分布置在相邻的狭缝阵列之间 同时具有大于狭缝间距的间距，以及设置在狭缝阵列外侧的端部，同时具有大于狭缝间距的间距。 光掩模还包括第二部分，其适于形成从光纤对准区域的水平面蚀刻到期望深度的光纤块的应力减小凹陷区域。 光掩模还包括布置在第一和第二部分之间的界面处的辅助狭缝阵列。 辅助狭缝阵列包括至少一个狭缝。

公开(公告)号：US06713743B2

公开(公告)日：2004-03-30

申请号：US10457311

申请日：2003-06-09

申请人： Jae Wan Kim ,  Tae Bong Eom

发明人： Jae Wan Kim ,  Tae Bong Eom

IPC分类号： G02B704

CPC分类号： G01Q20/02 ,  Y10S977/87

摘要： Disclosed is an atomic force microscope. A Fabry-Perot interferometer where the intensity of light reflected at a cantilever through an optical fiber varies sensitively to a displacement of the cantilever is constructed to accurately measure a distance between the optical fiber and the cantilever. A Fabry-Perot resonator is formed by the optical fiber having an end of a concave mirror shape and a reflective surface of the cantilever. A displacement of a cantilever tip is measured by detecting a signal reflected at the resonator and a feedback signal corresponding to a variation in the displacement of the cantilever tip is generated. The displacement of the cantilever tip is kept constant by actuating a piezoelectric element in a Z-axis direction.

摘要翻译： 公开了一种原子力显微镜。 Fabry-Perot干涉仪，其中通过光纤在悬臂处反射的光的强度敏感地变化到悬臂的位移，以准确地测量光纤和悬臂之间的距离。 法布里 - 珀罗谐振器由具有凹面镜形状的端部和悬臂的反射表面的光纤形成。 通过检测在谐振器处反射的信号来测量悬臂尖端的位移，产生对应于悬臂尖端位移变化的反馈信号。 通过在Z轴方向上驱动压电元件，悬臂尖端的位移保持恒定。

公开(公告)号：US20170195550A1

公开(公告)日：2017-07-06

申请号：US14986368

申请日：2015-12-31

申请人： Jae Wan KIM ,  Young Soo YOON ,  Li YUANMING

发明人： Jae Wan KIM ,  Young Soo YOON ,  Li YUANMING

IPC分类号： H04N5/232 ,  H04N5/77 ,  G06F3/0483 ,  G06F3/0482 ,  G06F3/0484 ,  G06F3/0488 ,  H04N5/225 ,  G06F3/0481

CPC分类号： H04N5/23245 ,  G06F3/04817 ,  G06F3/0482 ,  G06F3/0483 ,  G06F3/04847 ,  G06F3/04886 ,  H04N5/2252 ,  H04N5/23216 ,  H04N5/23293 ,  H04N5/772

摘要： A camera configured to record video and comprising a frame, a lens, an image sensor receiving light passing through the lens, a user interface including a display screen positioned opposite the lens, touch control elements, and navigation logic structured to turn on the camera responsive to touching in a first pattern at least one of the touch control elements, switch to another operating mode from a present operating mode responsive to clicking, at least once, the second touch control element, and enter a program mode responsive to touching the touch control elements according to a second pattern different than the first pattern and different from a single click of the second touch control element.